/*
* Sends a cross-call to a specified processor. The caller assumes
* responsibility for repetition of cross-calls, as appropriate (MARSA for
* debugging).
*/
static int
kdi_xc_one(int cpuid, void (*func)(uintptr_t, uintptr_t), uintptr_t arg1,
uintptr_t arg2)
{
uint64_t idsr;
uint64_t endtick, tick;
init_mondo_nocheck((xcfunc_t *)func, arg1, arg2);
shipit(cpuid, 0);
/* Spin for at most 1 second for checking */
endtick = gettick() + (uint64_t)sys_tick_freq;
idsr = getidsr();
if (idsr & IDSR_BUSY) {
do {
idsr = getidsr();
tick = gettick();
if (tick > endtick) {
return (KDI_XC_RES_BUSY);
}
} while (idsr & IDSR_BUSY);
}
kdi_tickwait(20000);
if (idsr & IDSR_NACK)
return (KDI_XC_RES_NACK);
else
return (KDI_XC_RES_OK);
}
/*
* Sends a cross-call to a specified processor. The caller assumes
* responsibility for repetition of cross-calls, as appropriate (MARSA for
* debugging).
*/
static int
kdi_xc_one(int cpuid, void (*func)(uintptr_t, uintptr_t), uintptr_t arg1,
uintptr_t arg2)
{
uint64_t idsr;
/*
* if (idsr_busy())
* return (KDI_XC_RES_ERR);
*/
init_mondo_nocheck((xcfunc_t *)func, arg1, arg2);
shipit(CPUID_TO_UPAID(cpuid));
if ((idsr = getidsr()) == 0)
return (KDI_XC_RES_OK);
else if (idsr & IDSR_BUSY)
return (KDI_XC_RES_BUSY);
else
return (KDI_XC_RES_NACK);
}